
public class EchoApp {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
		String argVar = args[0];
		String envVar = argVar.substring(1, argVar.length());
		System.out.print("Valor de ".concat(envVar).concat("= "));
		System.out.println(System.getenv(envVar));
		
		
		Integer miEntero = new Integer(5);
		int a = miEntero.intValue();
		
		System.out.println(miEntero.intValue());
		
		int i = a;
		
		
		
		
		
	}

}
